DTC U0129:00 [PCM (SKYACTIV-X)]
id0102u9683000
Outline
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System malfunction location |
CAN communication: communication error to electronically controlled brake unit |
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Detection condition
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• Communication error between the PCM and electronically controlled brake unit continues for 5 s or more.
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Fail-safe
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• Inhibits the electronically controlled brake system.
• Inhibits engine-stop by operating the i-stop function.
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Possible cause
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• CAN communication line malfunction between PCM and electronically controlled brake unit
• Electronically controlled brake unit malfunction
• PCM malfunction
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System wiring diagram
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• Not applicable
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Connector diagram
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• Not applicable
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Diagnostic Procedure